Linked Life Data

1967550

Source:http://linkedlifedata.com/resource/pubmed/id/1967550

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1990-3-9
pubmed:abstractText
The effects of taxol on antitubulin immunofluorescent staining patterns, cellular DNA content, and labeling with [3H]thymidine were measured for the taxol-sensitive HL60 and taxol-resistant K562 cell lines after exposures for 0, 4, 12, and 24 h. Taxol caused a relative increase in the fraction of 4C interphase and metaphase cells in both lines although the 4C interphase accumulation was greater for the resistant K562 line. Of the cells with S-phase DNA content, taxol-treated HL60 cells were less likely to incorporate [3H]thymidine than taxol-treated K562 cells. However, a decrease in percentage of S-phase labeling for both lines relative to control cells was seen. Finally, taxol induced the development of polyploid cells (cells with DNA contents greater than that of the 4C G2-M peak) in the relatively taxol-resistant K562 cells, an effect not seen in the relatively taxol-sensitive HL60 line. After 24 h of taxol exposure 70% of all K562 cells were polyploid while only 8% of the HL60 cells were polyploid. The capacity of K562 cells to generate polyploidy in response to taxol correlated with taxol resistance by previous assay and may be a useful indicator of drug resistance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
710-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Development of polyploidization in taxol-resistant human leukemia cells in vitro.
pubmed:affiliation
Department of Surgery, Johns Hopkins Hospital, Baltimore, MD 21205.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.